Carbureter



V'. E. HAAS.

CARBUBETER. APPLICATION FILED AP R. 10, I918.

1 ,342, 1 07 Patented June 1, 1920.

INVENTUR x damaw UNITED STATES PATENT. OFFICE.

VICTOR E. HAAS, OF TOLEDO, OHIO, ASSIGNOB. OF ONE-HALF TO SAMUEL E. STARR, 0F TOLEDO, OHIO.

CARIBURETER.

Application filed. April 10, 1918.

To all whom it may concern:

Be it known that I, Vroron E. HAAs, a citizen of the United States,.and a resident of Toledo, in the county of Lucas and State of Ohio, have invented a certain new and useful Carbureter; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to the characters of reference marked thereon, which form a part of this specification.

The object of the invention is to provide an efficient mixer and fuel vaporizer. Means is provided whereby a perfect mixture will be produced when the engine is idling or running at a slow speed, as when the engine is running at a higher speed, and will automatically adjust itself to the rate of speed of the engine.

The invention may be contained in vaporizers and carbureters of different forms to be used for a great variety of purposes, and yet such structures will come within the purview of the claims hereinafter appended. For purposes of showing the utility of the invention, I have selected one form of construction containing the invention and shall describe the same hereinafter. The form of construction selected is illustrated in the accompanying drawings.

Figure 1 of the drawings is a side view of the carburetor shown partly broken and partly in section. Fig. 2 is a sectional view of the carbureter taken on line 22 indicated in Fig. 1. Fig. 3 is a broken view showing means for adjusting one of the outlets for the fuel.

1, Fig. 1, is the main body portion or supporting part of the carbureter. It is pro vided with a coupling flange 2. It has an air inlet 3 and an outlet 4 that leads to the intake manifold of an engine. It is provided with a butterfly valve 5 which is connected with a suitable arm 7 for opening and closing the valve 5 and consequently the volume of the gas from the carburetor may be varied. The main body portion is also provided with a flange 8 on which is threaded a cap 9. The cap 9 is provided with a depending pocket 10 into which is threaded a sleeve 11. The sleeve 11 is provided with a knurled head 12 for adjusting the posi- Specification of Letters Patent.

Patented June 1, 1920.

Serial No. 227,691.

tion of the sleeve 11 in the cap 9. The packmg material and the packingnut 13 may be also threaded in the cap 9 to prevent any leakage by the sleeve 11. The lower end of the pocket 10 is provided with a flange 14 forming a socket in which is located a disk 15. The disk 15 is normally pressed against the bottom of a socket by means of the spring 16 which is located intermediate the disk 15 and the upper end of the sleeve 11. The sleeve 11 may be threaded to a greater or less extent into the gap 9 to adjust the pressure of the spring on the disk 15.

The bottom of the pocket 10 is provided with an opening 17 through which extends a pin 18 having a diameter considerably smaller than the diameter of the opening 17. The upper end of the pin 18 is normally located at a short distance from the disk 15 and consequently after the pin 18 has been raised through the short distance, it will then press against the disk 15.

F urthcr upward movement of the -pin 17 will be resisted by the tension of the spring 16 located in the sleeve 11. The pin 18 may be surrounded by a spring 90 that is located between the disk and the shoulder at the lower end of the pin. The spring performs no function except to prevent sticking of a movable valve member 22. I

The interior of the cap 9 communicates with the source of fuel supply through the fuel inlet 1.9. The fuel passes to the under side of a filter 20 which is secured in position by being clamped between the upper end of the flange 8 and the cap 9. The fuel then passes up through the filter 20 and over the upper edge of a sleeve 21 formed in the carbureter body in which is located the needle valve 22. The needle valve 22 is provided with a long conical shaped needle 23 and a short conical portion 24:. The bottom of the sleeve 21 is formed so as to fit the long needle portion 23 and the short conical portion 2 1 and thus it forms seats for these portions of the valve. The body portion of the valve 25 is made quadrilateral or winged in order to form spaces between the valve and the inside surface of the sleeve 21 and yet provide means for guiding the valve in its vertical movements. The needle valve normally rests in its seat formed in the gasolene is admitted directly into the chamber below the valve 43 which closes the chamber and when the engine is speeded up the gasolene enters above the valve 43 while the valve 37 further opens and forms an auxiliary air supply to the carbureter.

The sleeve 27 is provided with a plurality of openings 47. A sleeve 48 surrounds the sleeve 27 and is also provided with registering openings 49. The sleeve 48 may be adjusted in its position on the sleeve 27 to vary the openings 47 and 49. A pin 50 is threaded into a boss 51 formed on the sleeve 48 and is thus connected to the sleeve 48. The pin is provided with a handle 52 that may be shifted so as to move the pin 50 and the sleeve 48. The pin extends through the slot 53. The slot 53 is closed by an oblong plate which is about twice the length of a slot so that the slot is covered in all positions of the pin, the plate lying against the carbureter wall. When the handle 52 is shifted, the openings 49 are also shifted relative to the openings 47. WVhen the valve .22 is opened by the operations of the valve 43, the fuel passes down through the sleeve 21 and into the chamber beneath the sleeve 21 and out through the openings 47. The flow however is regulated by the position of the handle 52. The fuel then passes down over the sleeve 27 andonto the upper surface of the valve 43. The upper surface of the valve 43 is made conical in form and the fuel spreads itself over the surface and passes beneath its seat 46 and down over the side of the cup shaped valve into the cup 36. Also the air passes in through the inlet 3 and over the surface of the cone shaped valve 43 and beneath the depending fiange46 and down over its side, operating to vaporize and mix with the fuel as it passes into the cup 36.

To describe the construction with great particularity the valve 37 if attached to the stem 33, has a weight of about one ounce. The valve 37 has a diameter of 14%; inches. The spring 34 when coiled is inch long and has an outside diameter of 9; inch. It has seven coils. The maximum resistance on compression is about 1;} ounce. The wire is of a phosphor bronze having a length about 44' inches and a gage of 25 B. & S. The valves 22 and 26 have an inclusive weight of ounce. The spring 90 has four coils 2; outside diameter and is formed of phosphor bronze wire 25 B. & S. gage and is 2% inches long. The maximum resistance is ounce. The maximum resistance during opening the fuel valve through the operation of the valve 37 is 3 ounces. The opening area under the valve 37 is about 1% diameter and the carbureter referred to is designed for a four cylinder engine, 3% bore, four inch stroke. The resistance of the valve 37 including the spring 34 at starting the engine is about two ounces. When the valve has raised inch the resistance is about 3;- ounces.

The weight of the valve 43 is two ounces. Its diameter is 1% inches. The spring 45 is one inch long and is 1- inch outside diameter. The wire is 8 inches long, has seven coils and is formed of phosphor bronze No. 20 B. & S. gage. The resistance of the spring 45 at inch compression is about ten ounces. The leverage of the valve 43 through the lever 44 is about three to one, thus acting against the spring 45 giving a resistance of about ounces when the valve leaves its seat. The spring 16 which also operates against the movement of the valve 43 is 1;}: inches long, inches in diameter, has twelve coils and a resistance from zero to about four pounds. It is formed of a phosphor bronze wire No. 17 B. & S. gage. The wire is 12- 1?- inches long. The opening at the point where the valve 43 seats is 1:} inches and the size of the main air intake 3 is inches.

The cup 36 is divided into two chambers that are separated by a depending apron or baffie 55. The baffle 55 is a cylindrical member that is threaded onto a depending flange 56 formed on to the body portion'l of the carbureter. The baffle 55 extends to near the bottom of the cup 56 and thus directs the fuel and the air to the bottom of the cup 36 giving opportunity and causin the air to thoroughly mix with the fuel. rom the bottom of the cup 36 the air and vaporized fuel pass upward through the chamber 41 that surrounds the apron 55 and out through the outlet 4 and thus are thoroughly mixed.

If desired, the cup 36 may be provided with openings 57 that are closed by a glass cylinder 58 which may be sealed by packing rings 59 located at the ends of the glass cylinder 58 and intermediate the cylinder and the body portion 1 of the carbureter in the one case, and between the end of the cylinder 58 and the bottom of the cup 36 in the other case.

I claim:

1. In a carbureter for an internal combustion engine, the carbureter having a main air intake passageway and an auxiliary air intake passageway, air valves for controlling the movement of the air through the passageways the carbureter having a fuel passageway, a pair of fuel valves for controlling the movement of the fuel into the carbureter, one of the fuel valves operating to direct the fuel from the fuel passageway into one of the air passageways and onto the movable member of the main air valve when in one position and onto the auxiliary air valve when in another position and operated by the auxiliary air valve and, the main valve.

. o it, to?

2. In a carbureter for an internal coinbustion engine, the carburetor having a main air intake passageway and an auxiliary air intake passageway, air valves for controlling the movements of the air through the said passageways, the carburetor having a fuel passageway, a pair of fuel valves for controlling the movement of the fuel and operate l by the air valves, both of the fuel valves opened by the auxiliary air valve and one of the fuel valves further opened and the other of the fuel valves closed by the main air valve.

In a carbureter for an internal conibustion engine, a main air intake passageway and an auxiliary air intake passageway, a sleeve extending through the main airintake passageway, a source of fuel supply connected with the sleeve, a pair of fuel valves located in the sleeve, the main air valve surrounding and guided by the sleeve passageway extending through the wall of the sleeve and located above the main air valve, one of the fuel valves located above the sleeve wall passageway, the other fuel valve located below the passageway of the wall of the sleeve, and operatively connected to the first fuel valve to open the fuel valve and operatively connected to the auxiliary air valve to open the fuel valves and a. movable seat ineniber operatively connected to the main air valve for closing the secoml fuel valve.

l. In a carbureter for an internal cornbustion engine, a fuel valve, an adjustable spring member for controlling the fuel valve, an air inlet valve connected to the fuel valve, and operated according to the suction of the engine for ogening the fuel 'alve until further opening of the fuel valve is prevented by the spring member, a se air valve for further 01 ening the fuel valve according to the suction of the engine.

5. ln a carbureter for an internal co1nbustion engine, a fuel valve, an adjustable spring pressed ineinber normally located at a point removed from the fuel valve, an air inlet valve connected to the fuel valve, and operated. according to the suction of the e no for opening the fuel valve until further opening of the fuel valve by the said air valve is prevented by the spring member, a second. fuel valve also opened by the air inlet valve, a second air inlet valve for fiuther opening one of said fuel valves and for closing the other of said fuel valves.

ln testimony whereof, I have hereunto signed iny nznne to this specification.

VIOTQR W HAAS, 

